Mixed-field-switching liquid crystal mode using in-plane and fringe fields self-adjusted by bottom floating electrode for transmittance enhancement

43.3: Fast‐Response Fringe Field Switching LCD with Patterned Common Electrode

“…During decay process, the pixel electrodes are floated while a restoring voltage pulse is applied between adjacent common electrodes. The electric potential of floated pixel electrodes are spontaneously determined by the restoring voltage [8]. The in-plane field generated by this restoring voltage would exert a strong torque to pull the LC directors back to their initial rubbing [6,9].…”

A Fringe Field Switching Liquid Crystal Display With Fast Grayscale Response Time

“…During decay process, the voltage on pixel electrodes is released and the electrodes are kept floated while a restoring voltage pulse is applied between neighboring common electrodes. The electric potential of floated top pixel electrodes are spontaneously determined by the restoring voltage [23]. The in-plane field generated by this restoring voltage would exert a strong torque to pull the LC directors back to their initial rubbing direction in addition to the existing elastic restoring torque [24]- [27].…”

Continuous Viewing Angle Distribution Control of Liquid Crystal Displays Using Polarization-Dependent Prism Array Film Stacked on Directional Backlight Unit

“…as electrically controlled birefringence (ECB), hybrid-aligned nematic (HAN), and vertical alignment (VA) modes [17][18][19][20][21][22]. Depending on the electrically switched states of this viewing angle switching (VAS) panel, the viewing angle property of the stacked LC panel structure can also exhibit WVA and NVA conditions.…”

“…For achieving the viewing angle distribution control properties between the WVA and NVA in LCDs, several approaches have been introduced [15][16][17][18][19][20][21][22]. In most cases, a stacked structure using multiple LC panels has been proposed, where one panel is used for the conventional pixelized gray level control with WVA LC modes, such as IPS, MVA, PVA, and fringe-field switching (FFS) modes, and the other stacked panel is used just for the viewing angle distribution control with NVA LC modes, without a pixel pattern, such (a) spin-coating the UV curable resin on a film and imprinting process with a prism-shaped template, (b) UV curing the resin, (c) detaching the prism-shaped template from the solidified resin structure, (d) UV ozone treatment for surface energy control, (e) coating the surface of the imprinted prism structure with PVA and then curing it, (f) rubbing process on the PVA-coated prism structure along the prism structure direction, (g) coating liquid crystalline reactive mesogen (RM) on the prism structure and then laminating the rubbed PVA layer for the top-down RM alignment together with the bottom-up alignment, (h) UV curing for the crosslinked RM film, and (i) peeling-off the top PVA film from the RM-aligned prism film.…”